Hand spray pumps



April 24, 1956 Filed Nov. 19, 1952 A. P. SMITH 2,743,135

HAND SPRAY PUMPS 2 Sheets-Sheet l ATTORNEY mm. a

% $555555; INVENTOR ifflredfi 62222312,

A ril 24, 1956 A. P. SMITH 2 7 5 HAND SPRAY PUMPS Filed Nov. 19, 1952 2Sheets-Sheet 2 INVENTOR ATTORNEY HAND SPRAY PUMPS Alfred P. Smith,Utica, N. Y., assignor to The D. B. Smith & Company, Inc., Utica, N. Y.,a corporation of New York Application November 19, 1952, Serial No.321,339

2 Claims. (Cl. 299-97 This invention relates to improvements in handspray pumps.

The invention is more particularly concerned with hand spray pumps whichgenerally comprise an inner cylinder provided with a nozzle on one endthereof and is also provided with a handle adjacent this nozzle. Suchpumps further comprise an outer cylinder telescopably engaged With theinner cylinder and is provided with a hose engageable nut at its outerend.

As is generally known, such pumps operate to force fluid receivedthrough the attached hose out through the nozzle upon relativereciprocatory movement of the inner and outer cylinders.

In the use of such pumps, the operator grasps the referred to handlewith his left hand and also grasps the outer cylinder with his righthand for the relative reciprocating of the cylinders. The open end ofthe outer cylinder engages the adjacent end of this handle as a limit ofits movement on the inner cylinder in the direction of the nozzle. Whilesuch forms of pumps have met with general satisfaction, it has beenfound that the handle which is of substantial length necessitates asubstantially long pump in order to provide a sufiicient axial range ofreciprocatory movement of the cylinders.

A primary object of the present invention is to provide a pump of theabove noted general character but which is of substantially less lengthwith the same axial range of relative reciprocatory movement of theinner and outer cylinders, or which may be of the same length with asubstantially greater axial rangeof reciprocatory movement.

A further object of the invention is to provide a pump of the generalcharacter referred to which is adapted for connection thereto of one endof a hose leading from a fluid source beneath the pump whereby the hosewill not be subject to twisting.

Other objects and advantages of the invention will become apparent inthe course of the following detailed descriptions taken in connectionwith the accompanying drawings, and wherein:

Fig. 1 is a side elevational view of the pump in collapsed position, theview being on a substantially reduced scale;

Fig. 2 is a partial side elevational view showing the pump fullydistended;

Fig. 3 is a view of one end of the pump on full size scale, the viewbeing partially in axial vertical section and partially in sideelevation;

Fig. 4 is an end elevation as observed in the plane of line 4-4 on Fig.3; and

Fig. 5 is a transverse section in the plane of line 5-5 on Fig. 3.

Referring now in detail to the drawings, designates the inner cylinderand 11 designates the outer cylinder.

The inner cylinder 10 has asubstantial end portion nit mS tcs.

- Batente'd -Apr.--'2,4, 1956 thr -eof axially--extended through "acylindrical '"handle 1 2 which is"-provided--with an outwardly flared"open end 13. The opposite end of the cylindrical handle is crimped overa centrally apertured plate 14 through which an externally threaded endportion 15 of the inner cylinder extends.

The inner cylinder is retained against axial movement relative to thehandle 12 by means of nuts 16 and 17, the former of which engages the.inner face of plate 14 and the latter of which engages the outer facethereof.

As is indicated in Fig. 3 a knurled nut 18 embodied in the nozzle 19 isremovally threaded onto the end of the inner cylinder into engagementwith the nut 17 through an interposed washer 20.

Details of the nozzle are not herein disclosed since no claim theretoper se is made in this application.

The outer cylinder 11 is as in usual practice provided with a packingnut 21 in its open end for fluid sealing contact with the inner cylinder10.

The outer cylinder is provided with a hose attaching nut 22 having theaxis of its hose engaging portion 23 disposed at right angles to theaxes of the cylinders.

As will be noted upon particular reference to Fig. 3, a substantialaxial length of the outer cylinder 11 is disposed Within the cylindricalhandle 12 in the collapsed position of the pump indicated indot-and-dash lines and stantially the same end of the nozzle on theinner cylinder, whereby a pump of substantially less length than thoseheretofore in use and having the same axial reciprocatory range isprovided.

I In the use of the present pump wherein it is convenient to provide thefluid supply in a bucket, a hose may conveniently be attached to thehose engaging portion 23 of the nut 22 and from which it will extenddirectly to the bucket in the absence of any twisting or kinking of thehose. 7

While I have disclosed my invention in accordance with a single specificstructural embodiment thereof, such is to be considered as illustrativeonly, and not restrictive, the scope of the invention being defined inthe sub-joined claims.

What I claim and desire to secure by United States Letters Patent is:

1. In a hand spray pump, an inner cylinder having an externally threadedend portion, an inner nut on said threaded end portion, a circular platehaving a central aperture receiving said threaded end portion and withone face of the plate engaged with said nut, an outer nut on saidthreaded end portion engaged with the other face of said plate, a nozzlestructure including a nut on said threaded end portion outwardly of saidouter nut, an outer cylinder having an open end telescopically receivingsaid inner cylinder and having a hose engageable member adjacent itsouter end, and a cylindrical handle of greater diameter than said outercylinder and (References on following page) 3 V V References Cited inthe file of this patent 2,567,496 UNITED STATES'PATENTS 2,649,335

1,999,655 Coyle Apr. 30, 1935 2,348,190 Bullock May 9, 1944 5 503,2582,557,247

Ziherl June 19, 1951 4 Pittenger Sept. 11, 1951 Funke Aug. 18, 1953FOREIGN PATENTS Great Britain Apr. 4, 1939

